Simple Interest Worksheet for Maths Olympiad

Maths Olympiad topic 16: Simple interest · Set 742 · 40 questions

How to solve it (P × R × T ÷ 100): Simple interest = P × R × T ÷ 100 (P = principal, R = rate % per year, T = years). Amount = principal + interest. Rate = SI × 100 ÷ (P × T); time = SI × 100 ÷ (P × R).

1. 1.₹5000 is invested at 8% per year simple interest. What is the amount after 4 years? (a) ₹5400 (b) ₹6600 (c) ₹7000 (d) ₹1600
2. 2.₹1000 is invested at 6% per year simple interest. What is the amount after 2 years? (a) ₹1120 (b) ₹1180 (c) ₹120 (d) ₹1060
3. 3.The simple interest on ₹8500 for 3 years is ₹1530. What is the rate per year? (a) 5% (b) 18% (c) 6% (d) 7%
4. 4.What is the simple interest on ₹1500 at 7% per year for 3 years? (a) ₹420 (b) ₹315 (c) ₹105 (d) ₹1815
5. 5.₹10000 is invested at 11% per year simple interest. What is the amount after 3 years? (a) ₹13300 (b) ₹14400 (c) ₹11100 (d) ₹3300
6. 6.The simple interest on ₹8000 for 2 years is ₹800. What is the rate per year? (a) 6% (b) 10% (c) 5% (d) 4%
7. 7.The simple interest on ₹7500 for 5 years is ₹2250. What is the rate per year? (a) 7% (b) 5% (c) 6% (d) 30%
8. 8.In how many years will ₹3500 earn ₹875 simple interest at 5% per year? (a) 6 years (b) 10 years (c) 4 years (d) 5 years
9. 9.₹2500 is invested at 8% per year simple interest. What is the amount after 2 years? (a) ₹3100 (b) ₹2900 (c) ₹2700 (d) ₹400
10. 10.The simple interest on ₹9000 for 3 years is ₹2160. What is the rate per year? (a) 7% (b) 9% (c) 24% (d) 8%
11. 11.The simple interest on ₹10000 for 4 years is ₹3600. What is the rate per year? (a) 8% (b) 9% (c) 36% (d) 10%
12. 12.What is the simple interest on ₹5500 at 7% per year for 3 years? (a) ₹385 (b) ₹1155 (c) ₹1540 (d) ₹6655
13. 13.The simple interest on ₹8000 for 5 years is ₹2800. What is the rate per year? (a) 6% (b) 35% (c) 8% (d) 7%
14. 14.The simple interest on ₹10000 for 5 years is ₹3000. What is the rate per year? (a) 5% (b) 6% (c) 30% (d) 7%
15. 15.The simple interest on ₹9500 for 3 years is ₹855. What is the rate per year? (a) 2% (b) 3% (c) 4% (d) 9%
16. 16.In how many years will ₹3000 earn ₹600 simple interest at 10% per year? (a) 3 years (b) 2 years (c) 4 years (d) 1 year
17. 17.The simple interest on ₹3000 for 2 years is ₹420. What is the rate per year? (a) 8% (b) 14% (c) 7% (d) 6%
18. 18.What is the simple interest on ₹2500 at 4% per year for 3 years? (a) ₹400 (b) ₹100 (c) ₹2800 (d) ₹300
19. 19.What is the simple interest on ₹7000 at 7% per year for 2 years? (a) ₹1470 (b) ₹490 (c) ₹980 (d) ₹7980
20. 20.What is the simple interest on ₹1000 at 10% per year for 5 years? (a) ₹600 (b) ₹100 (c) ₹500 (d) ₹1500
21. 21.In how many years will ₹2500 earn ₹350 simple interest at 7% per year? (a) 4 years (b) 3 years (c) 1 year (d) 2 years
22. 22.In how many years will ₹4000 earn ₹960 simple interest at 8% per year? (a) 3 years (b) 4 years (c) 2 years (d) 6 years
23. 23.What is the simple interest on ₹6500 at 7% per year for 5 years? (a) ₹2275 (b) ₹2730 (c) ₹8775 (d) ₹455
24. 24.The simple interest on ₹3500 for 4 years is ₹1540. What is the rate per year? (a) 12% (b) 11% (c) 44% (d) 10%
25. 25.The simple interest on ₹1500 for 2 years is ₹90. What is the rate per year? (a) 6% (b) 3% (c) 4% (d) 2%
26. 26.₹6500 is invested at 9% per year simple interest. What is the amount after 2 years? (a) ₹8255 (b) ₹7670 (c) ₹7085 (d) ₹1170
27. 27.What is the simple interest on ₹8000 at 10% per year for 4 years? (a) ₹11200 (b) ₹3200 (c) ₹800 (d) ₹4000
28. 28.In how many years will ₹9000 earn ₹810 simple interest at 3% per year? (a) 6 years (b) 3 years (c) 4 years (d) 2 years
29. 29.What is the simple interest on ₹3500 at 5% per year for 4 years? (a) ₹875 (b) ₹700 (c) ₹4200 (d) ₹175
30. 30.What is the simple interest on ₹2500 at 3% per year for 2 years? (a) ₹75 (b) ₹150 (c) ₹225 (d) ₹2650
31. 31.The simple interest on ₹4500 for 5 years is ₹1800. What is the rate per year? (a) 40% (b) 7% (c) 9% (d) 8%
32. 32.In how many years will ₹9500 earn ₹570 simple interest at 2% per year? (a) 3 years (b) 6 years (c) 2 years (d) 4 years
33. 33.The simple interest on ₹8500 for 5 years is ₹2125. What is the rate per year? (a) 25% (b) 4% (c) 6% (d) 5%
34. 34.₹3500 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹3640 (b) ₹700 (c) ₹4340 (d) ₹4200
35. 35.The simple interest on ₹10000 for 3 years is ₹1800. What is the rate per year? (a) 18% (b) 6% (c) 5% (d) 7%
36. 36.In how many years will ₹5500 earn ₹990 simple interest at 9% per year? (a) 3 years (b) 1 year (c) 4 years (d) 2 years
37. 37.The simple interest on ₹10000 for 5 years is ₹1000. What is the rate per year? (a) 2% (b) 3% (c) 10% (d) 1%
38. 38.₹2000 is invested at 4% per year simple interest. What is the amount after 5 years? (a) ₹2480 (b) ₹2400 (c) ₹2080 (d) ₹400
39. 39.₹2500 is invested at 2% per year simple interest. What is the amount after 3 years? (a) ₹2550 (b) ₹2650 (c) ₹2700 (d) ₹150
40. 40.In how many years will ₹2000 earn ₹440 simple interest at 11% per year? (a) 2 years (b) 1 year (c) 3 years (d) 4 years

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